INCI Name
Cetyl Dimethicone
Functions
1 Roles
Sustainability
3/10
Category
emollients
What It Does
Cetyl Dimethicone is a high molecular weight alkyl-modified silicone that combines the slip and spreadability of dimethicone with the substantivity and water-repellency of a long-chain cetyl (C16) alkyl group. This modification creates a waxy solid at room temperature that melts on skin contact, making it particularly valuable in long-wear makeup formulations, water-resistant sunscreens, and conditioning hair products where enhanced adhesion and film-forming properties are desired. Formulators choose it over standard dimethicones when they need improved water resistance, longer-lasting effects, and a more substantial, cushiony skin feel without the heavy or greasy sensation of traditional waxes.
Technical Properties
Ionic Charge
nonionic
Molecular charge type
Viscosity Effect
thickening
Impact on formula thickness
Foaming Ability
none
Lather generation
Ingredient Compatibility
Works Well With
Avoid Combining
Sustainability Profile
Sustainability Score
Biodegradability
not readily biodegradable
Source
synthetic
Feedstock
silica and petroleum-derived hydrocarbons
Quick Reference
- Full INCI Name
- Cetyl Dimethicone
- Common Name
- Cetyl Dimethicone
- CAS Number
- 191044-49-2
- Category
- emollients